They've sucked on desktop PCs for years, and I highly doubt their mobile apps are any better. The app is specialized in security and does without unnecessary boosting or optimization functions. It's also the first release to be built for Windows on Arm.
There are also other security enhancements (side-channel resistance), and a few new features. PuTTY 0.71, released today, includes a large number of security fixes, many of which were found by the recent EU-funded HackerOne bug bounty. Internet, backup and social applications together with financial, weather, mapping and GPS navigation software absolutely free for Your Windows Phone.
Download software for HTC Touch Diamond / Pro / HD2 / Fuze / Tilt, Samsung and other smartphones.
Free Windows Mobile Apps More than 4500 free windows mobile games, apps and themes.